Assignee
CHANG CHENG-FENG
3 granted patents·13 citations·filing 2003–2005
Top patents by PatentIndex Score
3 records- 0179US7258737B2Method for recycling concrete wasteCHANG CHENG-FENG·Filed 2005·Granted Aug 21, 2007·8 cites·13 claims
- 0247US7069677B2Method for producing a ready-mix soil materialCHANG CHENG-FENG·Filed 2003·Granted Jul 4, 2006·3 cites·16 claims
- 0342US7163581B2Method for making regenerated soil material for the production of a structural unit, the structural unit made from the regenerated soil material, and method for recycling the structural unitCHANG CHENG-FENG·Filed 2005·Granted Jan 16, 2007·2 cites·5 claims
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